Most places around here is 1% of the purchase price for every half point. Which would be about 28 cents per point now. When beans were $15 it would be 30 cents per point.
You get back about half of that 30 cents with the weight of the moisture you sold.
I would rather be a point wet and get docked 30 cents then be 3 points to dry and miss out on the lost moisture weight.